JP2880080B2 - Tunnel wall - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tunnel wall applied to a common groove or the like in which an internal space is divided into a plurality of sections by partition walls and different public facilities are disposed in the divided spaces.

[0002]

2. Description of the Related Art As is well known, in a tunnel in which a plurality of facilities are laid, an internal space may be divided into a plurality of sections by partition walls, and each facility may be laid in the divided space. For example, a common ditch 1 shown in FIG. 8 is for arranging a plurality of public utilities buried underground in one tunnel, and has been widely used in recent years. The common groove 1 is formed by a primary lining wall 2, a secondary lining wall 3, and partition walls 4 and 5, and for example, each space 6, 7 and Inside 8, a water guide pipe (water supply pipe or sewer pipe) 11, an electric wire 12, a gas pipe 13, and a telephone cable 14 are arranged.

[0003] In order to construct the above-mentioned common groove 1, first, a tunnel is formed by excavating underground, and segments made of reinforced concrete manufactured in advance in a factory or the like are carried into the tunnel, and these segments are put around the tunnel. The primary lining wall 2 is constructed by connecting in the direction and the length direction. Thereafter, a reinforcing bar and a formwork are installed at the inner surface of the primary lining wall 2 and the positions where the partition walls 4 and 5 are to be formed, and concrete is poured into the formwork to form the secondary lining wall 3 and the partition wall. 4 and 5 are formed.

[0004]

By the way, in the conventional work of forming the partition walls 4 and 5 in the common groove 1, a reinforcing bar and a formwork are installed in the primary lining wall 2 formed in the ground. The work efficiency is poor, and in particular, the partition wall 4 is required to have a strength as a structural member for supporting the earth pressure from the surroundings, that is, the horizontal load, via the side wall portion of the primary lining wall 2. It is necessary to arrange a large number of these, and the work of forming the partition walls 4 also determines the speed of the entire construction work of the common groove 1, and there is a demand for an effective improvement measure that can improve the efficiency and rationalization of the work. Was.

The present invention has been made in view of the above circumstances, and has as its object to provide a tunnel wall capable of saving labor and improving efficiency in forming a partition wall inside a tunnel. I do.

[0006]

In order to achieve the above object, a tunnel wall according to claim 1 has a lining wall formed along a digging surface in a tunnel formed by digging underground.
In a tunnel wall provided with a partition wall for vertically partitioning a tunnel between opposing side walls of the lining wall, a protruding wall having an upper surface as a receiving surface is formed on one of the opposing side walls, and On the other side, an engaging wall portion is formed, and a slab base material constituting the partition wall is provided between the protruding wall portion and the engaging wall portion so that one side of the slab base material is formed of the protruding wall portion. It is placed on the receiving surface and the other side is engaged with the engaging wall portion, and the engaging wall portion is formed with an engaging groove that is oriented in a vertical direction. The groove has a shape in which the width dimension between the opposing side walls gradually narrows from the upper part toward the lower part, and gradually widens from the groove opening edge toward the groove bottom face, and on the other side of the slab base material, An engaging portion having a cross section substantially the same as the cross-sectional shape of the engaging groove is formed, and the engaging portion is engaged with the engaging groove. And it is characterized in that it is.

In the tunnel wall according to the second aspect, a lining wall is formed along a digging surface in a tunnel formed by digging in the ground, and a tunnel is formed between opposing side walls of the lining wall. In a tunnel wall provided with partition walls that partition vertically, a protruding wall portion having an upper surface as a receiving surface is formed on one of the opposed side wall portions, and an engaging wall portion is formed on the other side wall. The slab substrate forming the partition wall is placed between the portion and the engaging wall portion, and one side of the slab substrate is placed on the receiving surface of the protruding wall portion, and the other side portion A side is arranged to be engaged with the engagement wall portion, and the engagement wall portion has
An engaging groove is formed in the length direction of the tunnel, and the width of the engaging groove is gradually reduced from the start end to the end direction in the length direction of the tunnel. The slab base is formed on the other side of the slab base material with an engaging portion having a cross section having substantially the same shape as the cross sectional shape of the engaging groove. It is characterized in that the engaging portion is engaged.

[0008]

In the tunnel wall according to the first aspect, one of the opposed side walls of the primary lining wall is formed by a segment formed with a protruding wall portion having an upper surface as a receiving surface, and the other is formed by the upper and lower portions. The slab base material is moved from above to below by forming the engaging wall portion formed with the engaging groove portion facing in the direction between the projecting wall portion and the engaging wall portion. One side is placed on the receiving surface of the protruding wall, and the other side on which an engaging portion having a cross section having substantially the same shape as the cross section of the engaging groove is formed. The partition wall is arranged so as to be engaged with the engagement groove of the section, and forms a partition wall that partitions a space in the tunnel up and down.

In the tunnel wall according to the present invention, one of the opposed side walls of the primary lining wall is formed by a segment formed with a protruding wall having an upper surface as a receiving surface, and the other is formed by the other. A slab substrate is formed between the projecting wall and the engaging wall by a segment formed with an engaging wall formed with an engaging groove facing the length of the tunnel. To the other side on which one side is placed on the receiving surface of the protruding wall and an engaging portion having a cross section having substantially the same shape as the cross section of the engaging groove is formed. Are arranged so as to be engaged with the engagement grooves of the engagement wall portion, and constitute a partition wall which vertically partitions a space in the tunnel.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. Here, the case where the common groove 1 shown in FIG. 8 is formed by the tunnel wall of the present invention will be described as an example. First, as in the past, a tunnel was formed by excavating underground, and reinforced concrete segments manufactured in factories and the like were carried into the tunnel, and these were connected in the circumferential direction and length direction of the tunnel to form a primary lining wall. 1, in the tunnel wall of the present invention, in the tunnel wall of the present invention, a segment 21 which is one of the opposing segments constituting the side wall portion of the primary lining wall 2 is a partition wall. A projecting wall portion 23 is formed at the position where the position 4 is provided and extends in the length direction of the tunnel and serves as a receiving surface 22 of the upper surface thereof. The receiving surface 22 is a flat surface, and female screw holes 24 are provided in the segment wall above the receiving surface.
An engagement wall portion 32 is formed at a position where the partition wall 4 of the segment 31 facing the segment 21 is provided.
Then, between these protruding wall portions 23 and the engaging wall portions 32,
Also, the partition wall 4 is formed by arranging a slab base material previously manufactured in a factory or the like.

As shown in FIGS. 3 and 4, the engaging wall portion 32 includes H-shaped steel members 35, 3 arranged in a segment 31.
5, the base member 37 welded to the base 36, the legs 37, 37 welded to the base 36, and the support member 3 welded to the legs 37, 37
8 and engagement members 39 and 39 welded to the support member 38. The tips of the legs 37, 37 are cut so as to be inclined with respect to the vertical direction (see FIG. 4), and the interval between the engaging members 39, 39 gradually narrows from the upper part to the lower part, and the plate thereof Also in the thickness direction, there are tapered surfaces 40, 40 gradually expanding from the surface side toward the support member 38 side (see FIG. 3). The tapered surfaces 40, 40 of the engagement members 39, 39 and the support member 38 form an engagement groove.

The structure of the slab substrate disposed between the opposed segments 21 and 31 will be described with reference to FIGS. The slab substrate 51 includes a main portion 53 formed by welding and integrating flange portions of three H-section steels 52 #,
Placement section 5 placed on projecting wall section 22 of segment 21
4 and an engaging portion 55 that engages with the engaging wall portion 32 of the segment 31. The H-shaped steel 52 # is cut at a left end engaging portion 55 at an angle to the vertical direction (see FIG. 4), a support member 56 is welded to this cut portion, and an engaging member is further attached to the support member 56. 57 are welded. As shown in FIG. 2, the engaging member 57 is narrowed from the upper side to the lower side, and further, as shown in FIG. 3, the taper surface 58 gradually narrows in the plate thickness direction from the surface side to the support member 56 side. , 58. As shown in FIGS. 3 and 4, the H-shaped steel 52 # constituting the slab substrate 51 is vertically cut at the right end thereof, and a fixed steel plate 59 is welded to the cut portion to mount the mounting portion 54. Has formed. Bolt insertion holes 60, 60 are drilled in the fixed steel plate 59, and working windows 61, 61 are formed in an upper flange of the H-shaped steel 52 # for a bolt fastening operation described later.

In order to attach the slab substrate 51 to the segments 21 and 31 forming the opposing side surfaces of the primary lining wall 2, the slab substrate 51 is loaded into the tunnel in the lengthwise direction while being appropriately inclined. 1, the lower end of the engaging portion 55 is positioned so as to coincide with the upper end of the engaging member 39 of the engaging wall portion 32 provided in the segment 31, and the engaging portion 55 is engaged. It is dropped in the direction of arrow A so that the surface of the member 57 and the surface of the support member 38 slide. At this time, the plate width of the engagement member 57 and the engagement members 39,
The intervals of 39 correspond to each other, and the tapered surfaces 58, 58 and 40, 40 formed in the respective plate thickness directions abut. Further, the left surface of the engagement member 57 contacts the right surface of the support member 38, and the right surfaces of the engagement members 39, 39 contact the left surface of the support member 56. Therefore, the slab substrate 51 is firmly connected to the segment 31. At this time, the mounting portion 54 at the right end of the slab base material 51 is mounted on the receiving surface 22 of the protruding wall portion 23 provided on the segment 21, and in this state, the female portion of the segment 21 passes through the bolt insertion holes 60, 60. The segments 63 are fixed to the segments 21 by mounting bolts 63 in the screw holes 24.

Thereafter, a reinforcing bar and a formwork are installed between the slab base materials 51 arranged at predetermined intervals in the length direction of the tunnel, on the inner surface of the primary lining wall 2 and the like, and concrete is cast. The secondary lining wall 3 is formed, and a concrete layer 65 (indicated by a two-dot chain line in FIG. 1) is formed continuously over the upper surface of the slab base material 51 and between the slab base materials 51. A partition wall 4 that is vertically divided is constructed. In addition,
At this time, if necessary, mortar or the like is also injected into the inside of the H-section steel 52 # forming the slab base material 51.

In addition, the slab base material 51 is
When the support member 3 of the coupling wall portion 32 is
8 is provided with a female screw hole.
1 is also formed with a concave portion, a through hole is drilled in the support member 56 and the engaging member 57 of the slab base member 51 engaging portion 55, and an opening is provided in the flange portion of the H-section steel 35 #. Alternatively, bolt fastening between the slab base material 51 and the segment 31 may be used together.

Next, a second embodiment of the tunnel wall according to the present invention will be described with reference to FIGS. In the work of forming the common groove 1 by the tunnel wall of the present invention shown in the second embodiment, first, a tunnel is formed by excavating the ground as before, and a reinforced concrete segment manufactured in a factory or the like is placed in the tunnel. Carry in and connect them in the circumferential direction and length direction of the tunnel to form the primary lining wall 2,
Similarly to the first embodiment, the segment 21 which is one of the opposing segments constituting the side wall of the primary lining wall 2 among the above-mentioned segments extends in the lengthwise direction of the tunnel at the position where the partition wall 4 is provided. A protruding wall portion 23 serving as a receiving surface 22 is formed. The receiving surface 22 is a flat surface, and female screw holes 24, 24
Are perforated (see FIG. 1). Segment 21
An engaging wall portion 72 is formed at a position where the partition wall 4 of the segment 71 facing the segment 31 is provided. As will be described later, the engaging wall portion 72
The configuration is different from that of the engaging wall portion 32. Then, the partition wall 4 is formed by disposing a slab base material also previously manufactured at a factory or the like between the protruding wall section 23 and the engaging wall section 72. The configuration of the material is also different from that in the first embodiment.

As shown in FIGS. 6 and 7, the engaging wall portion 72 is provided with H-shaped steel members 75, 7 arranged in a segment 71.
5, a base member welded to the substrate 76, legs 77, 78, 79, a support member 80 welded to the legs 77, 78, 79, and an engagement member welded to the support member 80 81, 81. Legs 77, 78, 7
Reference numeral 9 denotes a configuration in which the support members 80 supported by these are positioned at an angle with respect to the tunnel length direction, and their tip surfaces are cut at an angle with respect to the tunnel length direction. The interval between the engaging members 81, 81 gradually becomes narrower in the tunnel length direction, and the plate thickness direction also becomes tapered surfaces 82, 82 that gradually expand from the surface side toward the support member 80 side. These engaging members 81,
The tapered surfaces 82, 82 of 81 and the support member 80 form an engagement groove.

The structure of the slab substrate disposed between the opposed segments 21 and 71 will be described with reference to FIGS. The slab base material 85 includes a main portion 87 formed by welding and integrating three flange portions of three H-section steels 86 #,
Placement section 5 placed on projecting wall section 22 of segment 21
4 and an engaging portion 88 that engages with the engaging wall portion 72 of the segment 71. The H-shaped steel 86 # is cut at an end where the engaging portion 88 is provided at an angle with respect to the tunnel length direction (see FIG. 6).
The support member 89 is welded to the cut portion of the section steel ‥, and the engaging member 90 is welded to the support member 89.
As shown in FIG. 5, the engaging member 90 is formed to have tapered surfaces 91, 91 which gradually narrow in the tunnel length direction and further gradually narrow in the plate thickness direction from the surface side to the support member 89 side. I have. Further, as shown in FIG.
The configuration of the right end mounting portion 54 is the same as that of the right end mounting portion 54 of the slab base material 51 shown in the first embodiment. That is, the H-section steel 86 constituting the slab base material 85
Is cut vertically at the end forming the mounting portion 54,
A fixed steel plate 59 is welded to this cut portion. Bolt insertion holes 60, 60 are formed in the fixed steel plate 59, and working windows 61, 61 are formed in an upper flange of the H-shaped steel 86 # for a bolt fastening operation described later.

In order to attach the slab substrate 85 to the segments 21 and 71 forming the primary lining wall 2, the slab substrate 8
5 is carried to the installation position in the length direction of the tunnel in a state of being appropriately tilted, and is taken in a horizontal posture, and as shown in FIG. It is positioned so as to coincide with one end of the engaging member 81 of the part 72, and is inserted in the direction of arrow B so that the surface of the engaging member 90 and the surface of the support member 80 slide. At this time, the plate width of the engaging member 90 matches the interval between the engaging members 81, 81, and the tapered surfaces 91, 91, 82, 82 formed in the respective plate thickness directions abut. Further, the left surface of the engagement member 90 contacts the right surface of the support member 80, and the right surfaces of the engagement members 81, 81 contact the left surface of the support member 89. Therefore, the slab substrate 85 is firmly connected to the segment 71. At this time, the right end mounting portion 5 of the slab base material 85
4 is mounted on the receiving surface 22 of the protruding wall portion 23 provided on the segment 21 similarly to the right end mounting portion 54 of the slab base material 51 in the first embodiment, and in this state, the bolt insertion hole 60 , 60, the bolts 63, 63 are attached to the female screw holes 24, 24 of the segment 21 to be fixed to the segment 21.

Thereafter, as described in the first embodiment, a reinforcing bar is provided between the slab bases 85 arranged at predetermined intervals in the length direction of the tunnel, the inner surface of the primary lining wall 2 and the like. , A formwork is installed, concrete is cast and the secondary lining wall 3 is formed, and a continuous concrete layer is formed on the upper surface of the slab base material 85 and between the slab base materials 85. The partition wall 4 which divides the upper and lower sides is constructed. At this time, if necessary, mortar or the like is also injected into the inside of the H-section steel 86 # forming the slab base material 85.

In addition, the slab base material 85 is
When the support members 8 of the connecting wall 72 are
0 is provided with a female screw hole.
1 is also formed with a concave portion, and a through hole is formed in the support member 89 and the engaging member 90 of the slab base material 85 engaging portion 88, and an opening is provided in the flange portion of the H-section steel 87 #. The bolt fastening between the slab base 85 and the segment 71 can be used in the same manner as in the first embodiment.

As described above, according to the tunnel wall shown in the first and second embodiments, the segment having the protruding wall forming one of the opposed side walls of the primary lining wall and the other are formed. Since the segment having the engaging portion and the slab substrate disposed between the protruding wall portion and the engaging portion can be manufactured in advance at a factory or the like, it is necessary to form a partition wall in the primary lining wall. The work of arranging the reinforcing bars and the formwork is greatly rationalized, and the labor for forming the partition wall inside the tunnel and the efficiency of the work can be reduced.

In the first and second embodiments, the case where the common groove is formed by the tunnel wall of the present invention has been described as an example. However, the application target of the tunnel wall of the present invention is not limited to this. However, the present invention can be generally used for a tunnel having a partition wall for dividing an internal space into upper and lower portions.

[0024]

As described above, according to the tunnel wall of the present invention, the following effects can be obtained. That is, in the tunnel wall according to the first aspect, one of the opposed side walls of the primary lining wall is formed by a segment formed with a protruding wall portion having an upper surface as a receiving surface, and the other is vertically formed. The slab substrate is formed by a segment formed with an engaging wall portion having a facing engaging groove, and the slab substrate is moved from above to below between the projecting wall portion and the engaging wall portion. A side portion is placed on the receiving surface of the protruding wall portion, and the other side portion on which an engaging portion having a cross section having substantially the same shape as the cross section of the engaging groove is formed, is connected to the engaging wall portion. Are arranged in such a manner as to be engaged with the engaging grooves of the above, and constitute partition walls for vertically dividing the space in the tunnel. Then, a segment having a protruding wall portion forming one of the opposed side walls of the primary lining wall, a segment having an engaging portion forming the other, and being disposed between the protruding wall portion and the engaging portion. Since the slab base material can be manufactured in advance at a factory or the like, the work of arranging the reinforcing bars and formwork for forming the partition wall in the primary lining wall is greatly streamlined, and the work of forming the partition wall inside the tunnel. Labor saving and efficiency improvement.

In the tunnel wall according to the present invention, one of the opposed side walls of the primary lining wall is formed by a segment formed with a protruding wall having an upper surface as a receiving surface, and the other is formed by the other. The slab substrate is formed between the projecting wall portion and the engaging wall portion by forming a segment having an engaging wall portion having an engaging groove formed in the lengthwise direction of the tunnel. In which the engaging portion having a cross-section substantially the same as the cross-sectional shape of the engaging groove is formed. A side wall is arranged so as to be engaged with the engagement groove of the engagement wall portion, and constitutes a partition wall that partitions a space in the tunnel up and down. Therefore, similarly to the above, the segment having the protruding wall portion forming one of the opposing side walls of the primary lining wall, the segment having the engaging portion forming the other, and the segment having the protruding wall portion and the engaging portion. Since the slab base material to be arranged in the primary lining wall can be manufactured in advance in a factory or the like, the work of arranging the reinforcing bars and formwork for forming the dividing wall in the primary lining wall is greatly streamlined, and the dividing wall is formed inside the tunnel. This can save labor and improve the efficiency of the work of forming the.

[Brief description of the drawings]

FIG. 1 is a front sectional view of a first embodiment of the present invention in which a part of a tunnel wall is omitted.

FIG. 2 is a left side view of the slab base material constituting the partition wall.

FIG. 3 is a plan sectional view in which a part of a slab base material constituting an engaging wall portion and a partition wall provided in a side wall portion is omitted.

FIG. 4 is a front sectional view of the same.

FIG. 5 is a left side view of a slab base material constituting a partition wall according to a second embodiment of the present invention.

FIG. 6 is a plan sectional view in which a part of a slab base material forming an engaging wall portion and a partition wall provided in a side wall portion is omitted.

FIG. 7 is a perspective view showing an operation of attaching a slab base material to an engaging wall provided on a segment.

FIG. 8 is a sectional view of a common groove.

[Explanation of symbols]

 2 Primary lining wall 4 Partition wall 21 Segment 22 Receiving surface 23 Projecting wall portion 31 Segment 32 Engaging wall portion 39 Engaging member 40 Tapered surface (engaging groove) 51 Slab base material 54 Mounting portion 55 Engaging portion 57 Engagement Joining member 58 Tapered surface 71 Segment 72 Engaging wall 81 Engaging member 82 Tapered surface (engaging groove) 85 Slab base material 88 Engaging portion 90 Engaging member 91 Tapered surface

──────────────────────────────────────────────────続 き Continuing on the front page (73) Patent owner 000219875 Tokyu Construction Co., Ltd. 1-16-1 Shibuya, Shibuya-ku, Tokyo (72) Inventor Munetaka Oseki 2-6-1, Yaesu, Chuo-ku, Tokyo Ishikawajima Building Materials (72) Inventor Akihiro Higashide 2-3-3 Kandaji-cho, Chiyoda-ku, Tokyo Obayashi Corporation Tokyo Head Office (72) Inventor Akio Nishimura 2-3-11 Kanda-surugadai, Chiyoda-ku, Tokyo Co., Ltd. Konoike Gumi (72) Inventor Toshimi Ino 1-25-1, Nishishinjuku, Shinjuku-ku, Tokyo Taisei Construction Co., Ltd. (72) Inventor Yoshifumi Fujii 8-1-1, Ginza, Chuo-ku, Tokyo Co., Ltd. (72) Inventor Yuji Asakami 1-16-14 Shibuya, Shibuya-ku, Tokyo Inside Tokyu Construction Co., Ltd. (72) Inventor Minoru Tanoda 2-chome Otemachi, Chiyoda-ku, Tokyo No. 6-3 Inside Nippon Steel Corporation (72) Inventor Takao Matsumoto 1-1 1-1 Wadazakicho, Hyogo-ku, Kobe City, Hyogo Prefecture Inside Kobe Shipyard, Mitsubishi Heavy Industries, Ltd. (56) References JP-A-5 −133 193 (JP, A) Japanese Utility Model Application Hei 4-46197 (JP, U) (58) Field surveyed (Int. Cl. ⁶ , DB name) E21D 11/10

Claims (2)

(57) [Claims] 1. A lining wall is formed along a digging surface in a tunnel formed by excavating underground, and a partition wall for partitioning the tunnel up and down is provided between opposing side walls of the lining wall. In the tunnel wall, a protruding wall portion having an upper surface as a receiving surface is formed on one of the opposed side wall portions, and an engaging wall portion is formed on the other side, and between the protruding wall portion and the engaging wall portion. The slab substrate constituting the partition wall has one side of the slab substrate placed on the receiving surface of the protruding wall and the other side of the slab substrate is engaged with the engaging wall. The engaging wall portion is formed with an engaging groove that faces in the vertical direction,
The engaging groove has a shape in which the width dimension between the opposing side walls gradually narrows from the upper part to the lower part, and gradually widens from the groove opening edge toward the groove bottom face. A tunnel wall, wherein an engaging portion having a cross section substantially the same as the cross-sectional shape of the engaging groove is formed in the engaging groove, and the engaging portion is engaged with the engaging groove. 2. A lining wall is formed along a digging surface in a tunnel formed by digging in the ground, and a partition wall for vertically partitioning the tunnel is provided between opposing side walls of the lining wall. In the tunnel wall, a protruding wall portion having an upper surface as a receiving surface is formed on one of the opposed side wall portions, and an engaging wall portion is formed on the other side, and between the protruding wall portion and the engaging wall portion. The slab substrate constituting the partition wall has one side of the slab substrate placed on the receiving surface of the protruding wall and the other side of the slab substrate is engaged with the engaging wall. The engaging wall portion is formed with an engaging groove facing the length direction of the tunnel, and the engaging groove has a width dimension between opposing side wall surfaces at the beginning of the tunnel in the length direction of the tunnel. From the groove opening edge to the groove bottom surface, and gradually widens from the groove opening edge toward the groove bottom. On the other side of the base material, an engaging portion having a cross section substantially the same as the cross sectional shape of the engaging groove is formed, and the engaging portion is engaged with the engaging groove. And the tunnel wall.